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Mitsubishi CNC control board rebuild troubleshooting guide

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Mitsubishi CNC Control Board Repair Services by Roc Industrial LLC

Is your Mitsubishi CNC control board malfunctioning? Roc Industrial LLC specializes in fast and reliable Mitsubishi CNC control board repair services, minimizing downtime and maximizing productivity for your CNC machinery. We understand the critical role these boards play in your operations, and our expert technicians are equipped to diagnose and repair a wide range of issues. Trust Roc Industrial LLC for dependable solutions, backed by years of experience and a commitment to quality.



About Mitsubishi CNC Control Boards

Mitsubishi Electric is a globally recognized leader in CNC (Computer Numerical Control) technology, renowned for its innovation, reliability, and performance. Mitsubishi CNC control boards are the brains behind countless CNC machines used in diverse industries, including manufacturing, aerospace, automotive, and more. These sophisticated boards manage and coordinate the movements of machine tools, ensuring precision and efficiency in machining operations. Mitsubishi's commitment to quality and technological advancement has made its CNC systems a preferred choice for manufacturers worldwide.


Mitsubishi CNC control boards are integral to a wide array of CNC applications, from milling and turning to grinding and EDM (Electrical Discharge Machining). Their advanced features, such as high-speed processing, multi-axis control, and user-friendly interfaces, enable manufacturers to achieve complex geometries and tight tolerances. The reliability and robustness of Mitsubishi CNC systems contribute significantly to the overall productivity and efficiency of manufacturing processes. When these critical components fail, it's essential to have a trusted repair partner like Roc Industrial LLC to restore your operations quickly and effectively.



Supported Models & Series

We repair a wide range of Mitsubishi CNC control board models and series, including but not limited to:

  • Meldas 500 Series

  • Meldas 50 Series

  • Meldas 5000 Series

  • Meldas 60 Series

  • Meldas 70 Series

  • M70/M700 Series

  • M80/M800 Series

  • E60 Series

  • E70 Series

  • C6 Series

  • C70 Series

  • Various PLC I/O Boards

  • Axis Control Boards

  • Power Supply Units for CNC Systems


Common Mitsubishi CNC Control Board Problems We Repair

Mitsubishi CNC control boards, while generally reliable, can experience failures due to age, environmental factors, or electrical surges. Recognizing these issues early can help prevent further damage and minimize downtime. Roc Industrial LLC is experienced in diagnosing and repairing a wide range of common problems.

  • No Power or Boot Failure: The control board fails to power on or boot up correctly, indicating a potential issue with the power supply or internal components.

  • Communication Errors: Inability to communicate with other CNC components, such as drives, motors, or the main controller, often due to faulty communication chips or wiring.

  • Axis Control Problems: Issues with axis movement, including erratic motion, failure to move, or inaccurate positioning, potentially caused by faulty encoders, drivers, or feedback circuits.

  • Display Issues: Problems with the display screen, such as flickering, dimming, or complete failure, indicating a potential issue with the display driver or the screen itself.

  • Memory Errors: Errors related to program storage or retrieval, often due to corrupted memory chips or faulty memory modules.

  • Input/Output (I/O) Failures: Malfunctions in the input or output circuits, leading to incorrect signals or failure to respond to commands.

  • Overheating: Excessive heat buildup on the control board, potentially caused by faulty cooling fans, clogged heat sinks, or component failures.

  • Blown Fuses: Frequent blowing of fuses, indicating a short circuit or overload condition within the control board.

  • Encoder Feedback Issues: Problems with the encoder feedback signals, leading to inaccurate positioning or axis control.

  • Software Corruption: Corruption of the control board's operating system or application software, resulting in erratic behavior or system crashes.

  • Drive Communication Errors: Inability to properly communicate with servo or spindle drives, leading to machine malfunction.

  • PLC Communication Issues: Problems with the Programmable Logic Controller (PLC) interface, causing issues with automated functions.


Our Mitsubishi CNC Control Board Repair Process

Roc Industrial LLC follows a meticulous and proven repair process to ensure the highest quality and reliability in our Mitsubishi CNC control board repairs. Our process is designed to quickly identify the root cause of the problem and implement effective solutions to restore your equipment to optimal performance.

  1. Free Evaluation and Quote: We begin with a free, no-obligation evaluation of your Mitsubishi CNC control board. Our experienced technicians thoroughly inspect the board to identify the fault and provide you with a detailed quote for the repair.

  2. Shipping Instructions: Once you approve the quote, we provide clear and concise shipping instructions to ensure your control board arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, your Mitsubishi CNC control board undergoes a comprehensive diagnostic process using our state-of-the-art test equipment. We simulate real-world operating conditions to accurately pinpoint the source of the problem.

  4. Component-Level Repair and Replacement: Our skilled technicians perform component-level repairs, replacing faulty components with high-quality replacements. We source components from trusted suppliers to ensure long-lasting performance.

  5. Load Testing and Quality Checks: After the repair, the control board undergoes rigorous load testing to verify its functionality and performance. We conduct thorough quality checks to ensure that the repair meets our strict standards.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. Your repaired Mitsubishi CNC control board is carefully packaged and returned to you, along with ongoing technical support to address any questions or concerns.


Nationwide Repair Services

Roc Industrial LLC provides Mitsubishi CNC control board repair services to customers nationwide. We understand the importance of minimizing downtime, and we offer fast turnaround times and expedited shipping options to get your equipment back up and running as quickly as possible. Whether you're located in New York, Los Angeles, Chicago, Houston, or Dallas, we're here to serve your repair needs.


Our nationwide service network ensures that you receive prompt and reliable support, regardless of your location. We work with trusted shipping partners to provide secure and efficient transportation of your Mitsubishi CNC control boards. Roc Industrial LLC is committed to providing exceptional service and support to customers across the United States.



Why Choose Roc Industrial LLC?

When it comes to Mitsubishi CNC control board repair, Roc Industrial LLC offers a distinct advantage. Our commitment to quality, expertise, and customer satisfaction sets us apart from the competition.

  • 30+ Years of Experience: With over three decades of experience in industrial electronics repair, we have the knowledge and expertise to handle even the most complex Mitsubishi CNC control board issues.

  • Warranty-Backed Repairs: We stand behind our repairs with a comprehensive warranty, giving you peace of mind and assurance of quality.

  • Thousands of Parts in Stock: Our extensive inventory of components allows us to quickly repair your Mitsubishi CNC control board, minimizing downtime.

  • Fast Turnaround, Often Same-Day: We understand the urgency of your repair needs and offer fast turnaround times, often providing same-day service for critical repairs.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring that we adhere to the highest standards of quality and consistency.

  • Exceptional Customer Support: Our dedicated customer support team is available to answer your questions and provide assistance throughout the repair process.

Don't let a faulty Mitsubishi CNC control board slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for Mitsubishi CNC control board repair services.

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